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Instabilities in air classification of fuels

Publication ,  Journal Article
Taub, JB; Peirce, JJ
Published in: Journal of Energy Engineering
January 1, 1983

The impact of feed composition on the stability of air classification in waste-to-energy production facilities is analyzed. Vertical air classification is one means of separating combustible organic matter from non-combustible inorganics typically found in municipal solid waste. Aerodynamically light organics ideally exit upward with air flow, while heavy inorganics ideally exit downward against the current. Problems develop in practice as organic matter is lost downward and inorganic matter exits upward to contaminate the fuel product. Utilizing a lab-scale vertical classifier, the overall efficiency and the sensitivity of the efficiency to air velocity is determined for several feed compositions. Particle-to-particle interaction is observed for a variety of feed compositions, and the effect this interaction has on the quality of the fuel product is documented. Results suggest modification to the design and operation of waste-to-energy fuel production facilities. Feed material to the classifier that is high in organic matter is seen to be not necessarily useful in producing a clean fuel product. Pre-processing techniques are suggested to polish this feed prior to air classification. © ASCE.

Duke Scholars

Published In

Journal of Energy Engineering

DOI

ISSN

0733-9402

Publication Date

January 1, 1983

Volume

109

Issue

2

Start / End Page

74 / 87

Related Subject Headings

  • Energy
  • 4008 Electrical engineering
  • 4005 Civil engineering
  • 4004 Chemical engineering
  • 0906 Electrical and Electronic Engineering
  • 0905 Civil Engineering
 

Citation

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Taub, J. B., & Peirce, J. J. (1983). Instabilities in air classification of fuels. Journal of Energy Engineering, 109(2), 74–87. https://doi.org/10.1061/(ASCE)0733-9402(1983)109:2(74)
Taub, J. B., and J. J. Peirce. “Instabilities in air classification of fuels.” Journal of Energy Engineering 109, no. 2 (January 1, 1983): 74–87. https://doi.org/10.1061/(ASCE)0733-9402(1983)109:2(74).
Taub JB, Peirce JJ. Instabilities in air classification of fuels. Journal of Energy Engineering. 1983 Jan 1;109(2):74–87.
Taub, J. B., and J. J. Peirce. “Instabilities in air classification of fuels.” Journal of Energy Engineering, vol. 109, no. 2, Jan. 1983, pp. 74–87. Scopus, doi:10.1061/(ASCE)0733-9402(1983)109:2(74).
Taub JB, Peirce JJ. Instabilities in air classification of fuels. Journal of Energy Engineering. 1983 Jan 1;109(2):74–87.

Published In

Journal of Energy Engineering

DOI

ISSN

0733-9402

Publication Date

January 1, 1983

Volume

109

Issue

2

Start / End Page

74 / 87

Related Subject Headings

  • Energy
  • 4008 Electrical engineering
  • 4005 Civil engineering
  • 4004 Chemical engineering
  • 0906 Electrical and Electronic Engineering
  • 0905 Civil Engineering